One head of chord reinforcement is male and the other one is female .
A chord reinforcement has one male end and one female end. There are brace hole and chord member bolt hole in the middle of reinforced chord member. Refer to Fig. 3-166 for connection of reinforced chord member and upper & lower chord member of truss frame. The purpose of setting up reinforced chord member is to improve the bending resistance of truss, and fully display the function of shearing resistance of truss web member. Because the bending distance of the bridge end is small, there is no need to set reinforced chord member in the head and rear end of truss.